The chemical makeup of essential oils gives them a host of desirable pharmacological properties ranging from antibacterial, antiviral, and antispasmodic, to uses as diuretics (promoting production and excretion of urine), vasodilators (widening blood vessels), and vasoconstrictors (narrowing blood vessels). Essential oils act on the adrenals, ovaries, and the thyroid and can energize or pacify, detoxify, and facilitate the digestive process. - Dr Kurt Schnaubelt